To find the volume,we would first need to find the height of square pyramid, by it's base edge and slant height using Pythagoras theorem:

We can then use the pyramid formula to find the volume:

In this case,the volume will be:
10×_/69×1/3
=27.68874...
≈27.7 units^3
Hope it helps!
Answer:
r = 1.41 mm
Step-by-step explanation:
Given that,
The circumference of the flower, C = 8.9 mm
We need to find its radius. We know that,
Circumference, 
Where
r is the radius of the object

So, the radius of the object is equal to 1.41 mm.
Answer:
0
Step-by-step explanation:
3x+21=3(x+7)
3x+21=3x+21
3x-3x=21-21
0x=0
x=0